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In the Special Report, "Estimation of Loss of Visual Efficiency," by Edmund B. Spaeth, F. Bruce Fralick, and William F. Hughes Jr., in the September, 1955, issue of the Archives, an error in percentage calculation appears in Section V, page 467. The result of multiplying 0.30 by 0.40 by 0.70 is 0.084, not 0.84 as stated in the text. The total visual efficiency of this eye is correctly given in the Report as 8.4%.
CORRECTION. AMA Arch Ophthalmol. 1955;54(6):915. doi:10.1001/archopht.1955.00930020921016